Ventilator



W. w.l vlfumcaREfrr VENTILATOR Filed Dec. 8, 1944 Julys, 17946. 7

Patented July 9, 1946 UNITED STATES PATENT OFFICE VENTILATOR Wilson W. Hargrett, Wyandotte, Mich.

Application December 8, 1944, Serial No. 567,200

2 Claims.

This invention relates to improvements in ventilators. It is an object of the invention to provide. a ventilator including ka downwardly and outwardly inclined deiiector plate spaced above the bottom of a window frame opening and secured therein so that a sash may rest upon the said deector plate to allow fresh air to flow inwardly between the underside of the latter and the bottom of the frame opening and at the same time to prevent rain from' entering.

Another object of the invention is to provide such @ventilator wherein a, ledge is provided along the inner side of the deflector plate to support the lower rail of the window sash and wherein means are provided for preventing raising of the sash from the outside.

A further object of the invention is to provide such a ventilator with a movable closure plate for closing the opening between the deflector plate and the bottom of the frame opening so that in extremely cold or windy weather the ilow of air beneath the deflector plate may be stopped.

Yet another object of the invention is to provide such a ventilator in one modication of which both the deector plate and the closure plate are adjustable for length so that the ventilator may be employed for windows of diierent widths.

Having thus briefly and broadly stated sonne of the objects and advantages of the invention I Will now describe it with the aid of the accompanying drawing, in which:

Figure l illustrates a cross section of the lower portion of a window frame in which the invention is mounted, and is shown as a section on the line I I of Figure 2.

Figure 2 is a section on the line 2 2 of Figure 1`.

Figure 3 is an enlarged section on the line 3 3 of Figure 2, but showing a slight modification in that the deflector plate is made in two sections.

Figure 4 is a section on the line 4 4 of Figure 3.

Figure 5 is a disassembled perspective view showing the modified form of the deector plate and the closure plate, one support and one pad.

Figure 6 is a section on the line 6 6 of Figure 3.

Referring to the drawing, I designates a converrtional window frame having a usual opening 2 therein provided on opposite sides with ordinary stile grooves 3 and 4 to receive opposite vertical margins of an upper sash (not shown) and a lower sash 6 respectively, and parting strips 'l dividing the grooves 3 and 4.

'I'he ventilator consists primarily of a deiiector 2 plate 9 made either in one piece as shown in Figures l and 2, or in two pieces as shown in Figures 3, 5 and 6, and two supports l0 on which the opposite extremities of the defiector plate are secured. When the deilector plate is made in two pieces they are both of substantially the same cross section and are relatively slidable one upon the other transversely of the windowirame l to adjust the length of the ventilator to suit windows of different Widths. Formed along the inner margin of the deiector plate. 9, or along 4both pieces or sections thereof, is an upturned flange l! which is adapted to lie adjacent the inner face of the underside of the lower sash 6, and formed in the ilange Il are vertical openended slots l2 extending from its upper margin to receive suitable securing means, such as thumb screws l2a, which are threaded intothe lower rail of the bottom sash 6 from the inside to engage the flange Il and prevent the sash being raised from without. Forming part of the deflector plate, or of each piece thereof when it is made in two pieces, and projecting outwardly from the base of the flange Il is a ledge I3 upon which the lower sash 6 rests, and projecting outwardly from the ledge, o1' ledges, I3 the deflector plate, or each piece thereof, is downwardly and outwardly inclined and terminates along its outer margin in a downwardly and inwardly rolled edge i4. It will be noted that the total outward projection of the delector plate is such that its rolled edge i4 is positioned inwardly of the outer faces of the vertical strips l5 which form the outer sides of the stile grooves 3 against which a screen l@ is normally secured. Thus my ventilator in no wise interferes with the installation of a screen in the normal manner.

When the deector plate is made in two pieces one or more elongated slots l1 are formed through each piece, and a slot in each piece is arranged at least in partial registry with a slot in the other piece so that a bolt i8 may be inserted through both pieces of the plate to hold their overlapping ends together with the aid of a screw I9'. Obviously by moving the two pieces of the deiiector plate 9 relative to one another the total length of the plate may be adjusted to suit the width of the window in which it is to be employed.

Formed on the outer extremities of the dellector plate 9, or on the outer extremity of each piece thereof, are tongues 20 which extend into the stile grooves 3 and 4 on opposite sides of the frame opening 2. Each support iii consists of a vertical portion 2l of angle-section having a relatively small foot 22 at its lower extremity which projects toward the foot on the opposite vertical portion 2|, and extending from its upper extremity are tongues 23 which extend into the stile grooves 3 and 4 beneath the tongues 2i! to support the latter. Inserted between the tongues and 23, which are riveted or otherwise suitably secured to one another as shown at 25, are felt pads 21 the edges of which project inwardly between the tongues as the size of the stile grooves 3 and 4 in different windows is apt to vary, and by making the pads larger than the tongues they will occupy the full Width and depth of larger grooves and thus assist in firmly holding the ventilator in position. One flange 2id of each angle-shaped vertical portion 2| bears against the outer face of one parting strip l and across the outer and inner stile grooves 3 and 4, and the other flange of each of the vertical portions bears against the inner vertical side of one of the inner stile grooves 4, Extending through each flange 2Ia is a screw 24 in threaded engagement with one of the parting strips 1, and the feet are secured in position on the base of the frame opening 2 as yby screws 25. I

In addition I also provide a closure plateSZ for opening and closing the space between the deilector plate 9 and the bottom of the frame opening 2, since, unless the ventilator is completely removed, it is impossible to pull the sash E down onto the bottom of the frame opening, and very cold days it may be `desirable to close this aperture. The closure plate 32, like the deileetor plate 9, may either be made of a single piece of material as shown in Figure 2, or of two relatively adjustable pieces as shown in Figure 5 and having their extremities secured to one another as by a bolt 38 and nut 39Y extending through both the said pieces. 'Mounted in the anges 2 la are pivot pins on which ears 3l integral with the closure plate 32 are mounted; and 33 denotes lugs for turning the plate 32 about the axis of the pins 39. In the present instance the pins 3i? are supported for rotation in the ilanges Zia, the ears 3i are connected to the pins for rotation therewith, and the lugs 33 are formed integral'with the said pins. ThusV by turning the lugs 33 the closure plate 32 is turned about the axis of the pins Si). Thus the closure plate may be turned either so that its outer margin lies on the base of the frame opening 2 as indicated at 32a'in Figure 1 to close the aperture, or so that the outer margin of the closure plate lies contiguous to the outei` margin of the deilector plate 9. Provided on the closure plate and the deiiector plate are coacting means for retaining the former in its open or raised position. In the present instance this retaining means consists of curved resilient contact edges 34 formed for a short distance along the outer margin of the closure plate 32 from its outer extremities which are positioned to resiliently engage the rolled edge I4 of the deflector plate 9 so that the closure plate is suiciently held thereto to prevent it accidentally dropping to its lowered position.

While in the foregoing the preferred embodiments of the invention have been described and shown, it is understood that further alterations and modifications may be made thereto provided the said alterations and modifications fall within the scope of the appended claims.

What I claim is:

1.'A ventilator comprising supports including angle-shaped vertical portions, feet projecting from the lower extremities of said portions for attachment to opposite sides of the base of an opening formed in a window frame, one flange of each angle-shaped portion lying contiguous to the inner face of a stile groove formed inthe frame and the other flanges resting against strips defining the stile grooves, tongues on "said supports extending into the stile grooves, a deiiector plate in the frame opening spaced above the bot,- torn thereof, said plate having other tongueson its extremities supported on the first named tongues, flexible pads wider than said tongues arranged between the upper and lower tongues, said plate having a ledge formed along it to support a sash movable in the stilev grooves, an upward flange extending from theinnel'r margin of the ledgeto yrest contiguous to the inner face of the sash, and the deflector plate extending downwardly and outwardly from the .ledge to form an air passage between it and the underside of the frame opening.

2. A ventilator including two vertical supports having outwardly projecting horizontal tongues at their upper extremities to'extend into stile grooves of a window frame and horizontal yreet at their lower extremities for attachment. tothe underside of the opening in said frame, a deflector plate extending across the frame opening and supported at its extremities on said tongues, said plate having a ledge formed across it to support a lower sash in said frame and an upwardly projecting ange formed across the inner margin of the plate outwardly adjacent which the inner face of the bottom of the lower sash is adapted to rest,l and said deflector plate projecting downwardly and outwardly from the said ledge to form an air passage between it and the underside of the frame opening. A

WILSON W. HARGRETT. 

